Unit for track belts



RUBE UNIT FOR TRACK BELTS Filed Marcus, 1922 INVENTOR 31 v fHwARd ERubER ATTORN EY Patented Feb. 26, 1924.

EDWARD GRUBER, OF LYNDHURST, OHIO.

UNIT FOR TRACK BELTS.

flawed out of application on which Patent No. 1,359,499 was granted November 23,1920, and filed after grant ofthe patent. This application filed March 8, 1922. Serial No. 542,119.

To all wizom it may concern: Be it known that I. EDWARD GRUBER, a citizen of the United States, residing at Lyndhurst, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Units for Track Belts, of which the following is a full, clear, and exact description.

This invention is matter carved out of applicants Patent 1,359,499 and is an improvement upon the unit or link which is shown and described in Patent 1,317,896 to E. H. Savage dated Oct. 7, 1919, the principal object being to increase the strength and durability of the link sides of the unit, and to diminish the chance that the horizon tal flanges at the upper edges of said link sides, which serve as bearing surfaces or rail tops for the track wheels shall be so mutilated and deformed in use that they can bers B and C, all made from metal sheets bent into the forms shown and secured together. The middle member A has the form of a substantially square U, and is so formed by bending up the sides of the metal plate, thereby producing the flat bottom or slide portion 12, and the two vertical longitudinally extended rails 13.

The two side members Band C are alike except that they are right and lefts. Each has avertioal longitudinally extended rail 21. These rails are so shaped that when the three pieces are placed side by side the rails 13 and 21 will be in contact near the front end of the unit, and near the rear end of the unit; but the parts of the rails between saidcontacting front andrear ends are spaced apart. This results from the fact that the rails 13 near their rear ends are offset apart; and the rails 21 near their front ends are efiset toward one another. The oflset portions are, however, parallel with each other and with the rails from which they are ottset. When the rails-are placed together as stated, the offset front'ends of the rails 21 engage with the outer faces of the front ends of the rails 13 and are connected with them by spot welding, rivets and the like. The offset rear ends of the rails 13 will likewise engage the inner faces of the rails 21, and these engaging parts are connected together by spot welding, rivets or the like.

The offset parts of said rails at the front and rear ends of the unit, together with the parts of the rails which contact with and are secured to said offset parts constitute double thick ears. These ears at the rear ends of the unit are farther apart than those at the front end of the unit; and therefore the ears at the front end of theunit may go between the ears at the rear end of the adjacent unit and the overlapping ears may be pivoted together by any suitable or well known means.

In the constructionshown a shoe 30 is provided and is connected to the base of the middle member A, by spot welding, rivets, or the like. q

The upper edges of the rails are formed with turned over horizontal flanges 24; and these flanges rest only on the top of the offsetting web 25 of the rails 21. These flanges 24 form strong, well braced, broad surfaces for the track Wheels to ride on, and they are so constructed and supported that there is practically no chance that they will become'deformed by use to an extent, such aswill render them insufficient for the purpose for which they are provided.

The front edge of the shoe 30 may be turned down to form the ground engaging rib or grouser 31. f

Having described my invention, I claim I 1. In a track belt unit, a shoe, a central rail member having a bottom secured to said shoe and bent up sides. forming rails, said rails having flanges extending therefrom,

and side rail members secured to the sides flanges extendin therefrom. a

2. In a trackdielt unit, a shoe, a central rail member having a bottom secured to said shoe and bent up sides forming rails, and a of said central railmember supporting the side rail member secured to and adjacent the outer sides of each of the sides of said central rail member. I

- anemone 3. In a track belt unit, a shoe, 2. central under and' supporting a portion of the rail member having a bottom secured to said flanges extending from the sldes of said censhoe and bent up sides forming rails, said. tral rail member. rails having flanges extending therefrom, In testimony whereof, I hereunto aflix my e and side rall members secured to the sides signature.

of said central rail member, said side rail members having an ofiset web extending 

